Hi guys, I was studying on reader-writer semaphores in LLD3. Refered to some samaphore books. but some clarity is missing. Reader/Writer Semaphores: The critical section between down_read, up_read semaphores provides read-only access to the protected resources. I assume that any data in between thi calls is considered protected resources. As there is no data manipulation what it means is reader1/ reader2 can execute the same instrction simultaniously. but how is that possible. How can a perform a read a read aeithout data manipulation i.e. updating user buffers, updatinf the fpos, count. Will these not need protection between the readers themselves i.e. reader1, reader2, ...readerN How does this happen? Regards, Bhanu -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ
